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As of 11/06/2026, TanOS recorded 1 security vulnerability in the last 90 days, of which 1 is rated High or Critical. None of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of TanOS and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-121565Tanium addressed an improper certificate validation vulnerability in multiple productsCVE-2026-2605Tanium addressed an insertion of sensitive information into log file vulnerability in TanOS.CVE-2025-13225Tanium addressed an arbitrary file deletion vulnerability in TanOS.| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-121565Tanium addressed an improper certificate validation vulnerability in multiple products | Exploitation statusNot confirmed | FixYes | Published11/03/2026 | SeverityHigh |
CVE-2026-2605Tanium addressed an insertion of sensitive information into log file vulnerability in TanOS. | Exploitation statusNot exploited | FixYes | Published02/19/2026 | SeverityMedium |
CVE-2025-13225Tanium addressed an arbitrary file deletion vulnerability in TanOS. | Exploitation statusNot exploited | FixYes | Published11/19/2025 | SeverityMedium |
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